One chance:
9:27 And as it is appointed unto men once to die, but after this the judgment:
(King James Bible, Hebrews)
All have sinned:
3:10 As it is written, There is none righteous, no, not one: 3:11 There is none that understandeth, there is none that seeketh after God.
Wages of Sin:
6:23 For the wages of sin is death;
Cure:
5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
How:
10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
Anyone:
10:11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
10:13 For whosoever shall call upon the name of the Lord shall be saved.
Not by works:
4:3 For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness.
4:4 Now to him that worketh is the reward not reckoned of grace, but of debt.
4:5 But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness.
Assurance:
5:9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
5:10 For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.
5:11 And not only so, but we also joy in God through our Lord Jesus Christ, by whom we have now received the atonement.
Free:
5:15 But not as the offence, so also is the free gift. For if through the offence of one many be dead, much more the grace of God, and the gift by grace, which is by one man, Jesus Christ, hath abounded unto many.
5:16 And not as it was by one that sinned, so is the gift: for the judgment was by one to condemnation, but the free gift is of many offences unto justification.